\begin{table}[htbp]\centering
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\caption{Pre-trends check for post-2000 events \label{tab:pre_trends}}
\begin{tabular*}{\hsize}{@{\hskip\tabcolsep\extracolsep\fill}l*{10}{c}}
\toprule
            &\multicolumn{7}{c}{MSCZ pairs}                                                                                                                           &\multicolumn{3}{c}{County pairs}                                 \\\cmidrule(lr){2-8}\cmidrule(lr){9-11}
            &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}&\multicolumn{1}{c}{(7)}&\multicolumn{1}{c}{(8)}&\multicolumn{1}{c}{(9)}&\multicolumn{1}{c}{(10)}\\
            &\multicolumn{1}{c}{ }&\multicolumn{1}{c}{ }&\multicolumn{1}{c}{ }&\multicolumn{1}{c}{ }&\multicolumn{1}{c}{ }&\multicolumn{1}{c}{ }&\multicolumn{1}{c}{ }&\multicolumn{1}{c}{\shortstack{All\\BCP}}&\multicolumn{1}{c}{\shortstack{Non-MSCZ\\BCP (JNR\\sub-sample 1)}}&\multicolumn{1}{c}{\shortstack{MSCZ county\\pairs (JNR\\sub-sample 3)}}\\
\midrule
Trend until t[-1]&       0.080\sym{***}&       0.072         &       0.074\sym{***}&       0.069\sym{*}  &       0.058\sym{**} &       0.087\sym{**} &       0.058\sym{***}&       0.017         &      -0.027         &       0.059\sym{**} \\
            &     (0.018)         &     (0.045)         &     (0.017)         &     (0.041)         &     (0.022)         &     (0.032)         &     (0.019)         &     (0.024)         &     (0.026)         &     (0.022)         \\
 
 
 
Trend until t[-3]&       0.075\sym{***}&       0.075         &       0.072\sym{***}&       0.072\sym{*}  &       0.075\sym{***}&       0.082\sym{**} &       0.052\sym{***}&       0.027         &      -0.012         &       0.065\sym{***}\\
            &     (0.017)         &     (0.044)         &     (0.016)         &     (0.041)         &     (0.017)         &     (0.032)         &     (0.018)         &     (0.020)         &     (0.022)         &     (0.018)         \\
\midrule
N           &       1,220         &       1,956         &       1,220         &       1,956         &       1,220         &       1,220         &       1,220         &       6,170         &       4,640         &       5,098         \\
CBP dataset &                     &           Y         &                     &           Y         &                     &                     &                     &                     &                     &                     \\
\shortstack{Outcome is\\log emp}&                     &                     &           Y         &           Y         &                     &                     &                     &                     &                     &                     \\
\shortstack{Pop and non-rest\\emp controls}&                     &                     &           Y         &           Y         &                     &                     &                     &                     &                     &                     \\
\shortstack{Weighted by\\population}&                     &                     &                     &                     &           Y         &                     &                     &                     &                     &                     \\
Start year 1990&                     &                     &                     &                     &                     &           Y         &                     &                     &                     &                     \\
Start year 1997&                     &                     &                     &                     &                     &                     &           Y         &                     &                     &                     \\
Events evaluated&          26         &          22         &          26         &          22         &          26         &          26         &          26         &          32         &          32         &          26         \\
 \hline\hline \end{tabular*} {\centering \caption*{\begin{footnotesize} This table reports coefficients from the specification described in Equation \ref{eq:ES_dynamic_pre_trends}, with the outcome being log of employment rate in all columns apart from Columns 3 and 4. The top row is the exact specification as the equation, while the bottom row takes the trend until t[-3] in event-time instead of t[-1]. Unless indicated otherwise (only in Columns 6 and 7), the long difference is taken from 1993. The dataset is QCEW in all columns apart from Column 2 and 4. All estimates, with the exception of Column 5 are unweighted. Columns 1 - 7 use data from MSCZ pairs, while Columns 8 - 10 use pairs of counties. Column 8 uses all border county pairs, while Columns 9 and 10 correspond to sub-samples 1 and 3 as identified by JNR. Standard errors, reported in parentheses, are clustered at the state level. Stars indicate statistical significance as follows: \sym{*} \(p<0.10\), \sym{**} \(p<0.05\), \sym{***} \(p<0.01\) \end{footnotesize}}} \end{table} 
